Nanoscale Research Letters最新文献

{"title":"Biosynthesis and antibacterial activity of selenium nanoparticles using Pseudomonas aeruginosa and Bacillus pumilus RMO6","authors":"Elina Heidari,&nbsp;Morteza Milani,&nbsp;Farhad Bani,&nbsp;Faezeh Milani,&nbsp;Abolfazl Akbarzadeh","doi":"10.1186/s11671-026-04484-y","DOIUrl":"10.1186/s11671-026-04484-y","url":null,"abstract":"<div><p>Bacterial infections are common and challenging to treat due to increasing antibiotic resistance. Research has focused on using various nanoparticles, with studies showing that Selenium Nanoparticles (Se-NPs) have antibacterial effects. This study focuses on the biosynthesis and characterization of Se-NPs using <i>Pseudomonas aeruginosa</i> and <i>Bacillus pumilus</i> RMO6. Bacteria were cultivated on the microbial culture media, followed by the synthesis of Se-NPs through the reduction of sodium selenite in the bacterial supernatant. Characterization techniques, including UV-Vis spectroscopy, FT-IR, XRD, TEM imaging, and DLS, confirmed the successful formation of Se-NPs, revealing their size, morphology, and surface properties. The Biosynthesized nanoparticles exhibited significant antimicrobial activity against four standard bacterial strains: <i>Escherichia coli</i>,<i> Pseudomonas aeruginosa</i>,<i> Staphylococcus aureus</i>, and <i>Enterococcus faecalis</i>. Notably, Se-NPs synthesized by <i>Bacillus pumilus</i> demonstrated a significantly lower MIC and greater effectiveness in biofilm eradication (MBEC) compared to those produced by <i>Pseudomonas aeruginosa</i>, with a fourfold reduction in MIC against <i>Escherichia coli</i> and <i>Staphylococcus aureus</i>. These findings highlight the potential of Se-NPs as effective agents in combating resistant bacterial infections and suggest their promising application in medical treatments.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04484-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147640566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structurally tuned g-C3N4 nanosheets via thermal exfoliation for superior photocatalytic oxidative degradation of industrial food dye pollutants","authors":"Silpa Sunil,&nbsp;Badal Kumar Mandal,&nbsp;Srinivasan Latha","doi":"10.1186/s11671-026-04505-w","DOIUrl":"10.1186/s11671-026-04505-w","url":null,"abstract":"<div><p>Graphitic carbon nitride (g-C₃N₄), an attractive metal-free photocatalyst, has received significant interest for the treatment of wastewater due to its high chemical stability and visible light responsiveness. The photocatalytic effectiveness of pure g-C₃N₄ (GCN) is limited due to its low surface area a₃nd fast recombination of charge carriers generated by photons. In this work, the physicochemical properties of bulk GCN were systematically modified by direct thermal exfoliation to the thermally exfoliated GCN. The photocatalytic efficiency of the synthesized samples was assessed through the degradation of food dyes Carmoisine (CM) and Indigo Carmine (IC) under UV, visible, and natural sunlight exposure. Structural and morphological analysis (i.e., FTIR, XRD, FE-SEM, EDAX, BET, and UV-DRS) revealed the improved surface properties and optical characteristics of the material. BET surface area measurements significantly increased from 5. 03 m²/g (bulk GCN) to 26.2 m²/g for exfoliated GCN (GCN 550 ˚C). Radical trapping experiments revealed that the superoxide radicals (^•O₂⁻) exerted more significant effects on degradation than hydroxyl radicals (^•OH) and photoinduced holes (h⁺) did. The photoluminescence (PL) and electrochemical impedance spectroscopy (EIS) results indicated that exfoliated GCN had lower charge carrier recombination and higher interfacial charge transfer. Moreover, the catalyst displayed remarkable recyclability with only a slight decrease in activity from 92% to 86% across five cycles. The obtained results demonstrate that the exfoliated graphitic carbon nitride is an efficient, stable, and sustainable photocatalyst for wastewater treatment applications.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04505-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147635330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the synthesis, structural, and functional insights into PbCuZnO nanocomposite for photocatalytic dye degradation application","authors":"Abdulrahman Alasmari,&nbsp;Chellasamy Panneerselvam","doi":"10.1186/s11671-026-04514-9","DOIUrl":"10.1186/s11671-026-04514-9","url":null,"abstract":"<div><h3>Aim</h3><p>This work investigates the development and visible-light-driven photocatalytic behavior of PbCuZnO nanocomposites for degrading Rhodamine B dye. The study emphasizes how multi-metal incorporation influences the structural, optical, and functional characteristics of the synthesized materials.</p><h3>Materials and methods</h3><p>PbCuZnO nanocomposites containing 2 and 4% of Pb-Cu were prepared using a sol-gel assisted combustion method. Their structural, morphological, and elemental features were analyzed using XRD, FTIR, SEM, and EDX. Optical responses were examined through UV-visible spectroscopy and Tauc’s plots. Photocatalytic efficiency under visible light was assessed using Rhodamine B as the target contaminant, and kinetic parameters were extracted using pseudo-first-order models.</p><h3>Results</h3><p>XRD patterns confirmed the retention of the wurtzite ZnO structure with slight lattice distortions arising from Pb and Cu incorporation. SEM images showed nanostructured morphologies, and FTIR spectra verified the formation of metal–oxygen bonds. UV-visible measurements revealed a red-shift in absorption with dopant concentration, accompanied by band gap changes from 3.01 eV PbCuZnO (2%) to 3.2 eV PbCuZnO (4%). Photocatalytic experiments indicated improved Rhodamine B degradation performance, with the 4% (~ 95%-efficiency) doped sample displaying the highest activity compared to 2% of PbCuZnO, showing ~ 75% and a reaction rate constant of 0.031 min⁻¹. Radical-scavenging tests suggested that ·OH and ·O_z⁻ species play dominant roles in the degradation mechanism.</p><h3>Significance</h3><p>The synergistic incorporation of Pb²⁺ and Cu²⁺ enhances visible-light absorption, promotes charge-carrier separation, and improves the structural robustness of ZnO, yielding an efficient and reusable photocatalyst. These PbCuZnO nanocomposites therefore show strong potential for practical wastewater treatment and environmental clean-up applications.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04514-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147629401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bibliometric and visualized analysis of metal‒organic frameworks in bone tissue engineering and bone diseases","authors":"Kai Xia,&nbsp;Liyuan Yu,&nbsp;Jing Qin,&nbsp;Mengjiao Zhu,&nbsp;Mingyue Fan,&nbsp;Wenhao Qian","doi":"10.1186/s11671-026-04535-4","DOIUrl":"10.1186/s11671-026-04535-4","url":null,"abstract":"<div><h3>Background</h3><p>Given their tunable structures, high porosity, and multifunctional therapeutic potential, metal–organic frameworks (MOFs) have emerged as versatile biomaterials for bone tissue engineering and bone-related diseases. Despite rapid research growth, a systematic and bone-specific bibliometric understanding of its knowledge structure, thematic evolution, and emerging research frontiers remains limited.</p><h3>Methods</h3><p>Publications on MOFs related to bone tissue engineering and bone diseases (2015–2025) were retrieved from the Web of Science Core Collection. Bibliometric and visualized analyses using Bibliometrix, VOSviewer, and CiteSpace were performed to evaluate publication trends, global contributions, collaboration networks, journals, references, and keyword dynamics. Keyword frequency, co-occurrence clustering, trend topic analysis, thematic mapping, and citation burst detection were integrated to elucidate structural and temporal evolution.</p><h3>Results</h3><p>A total of 350 English-language publications were analyzed, showing a marked increase in annual output after 2022 but a decline in average citation rate. China was the most productive country, led by Sichuan University and Shanghai Jiao Tong University, while Australia and Canada achieved higher average citation impacts. Keyword analyses identified bone regeneration and osteogenesis as enduring cores, whereas temporal trends revealed a shift from early material synthesis and drug delivery to function-oriented, clinically motivated research. Emerging topics such as oxidative stress, photothermal therapy, corrosion resistance, and magnesium alloys highlight ongoing therapeutic integration and implant optimization.</p><h3>Conclusion</h3><p>This study delineates the evolution of MOF-based bone research from material-centered exploration to clinically driven innovation, offering data-driven insights to guide future research and translational applications.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13053720/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147624725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photoelectrochemical hydrogen production: a comparative and bibliometric analysis of metal-organic frameworks and perovskites","authors":"Bachir Yaou Balarabe,&nbsp;Manka Marycleopha,&nbsp;Irédon Adjama,&nbsp;Rabani Adamou,&nbsp;Abdou Yaou Balarabe,&nbsp;Hassimi Moussa","doi":"10.1186/s11671-026-04525-6","DOIUrl":"10.1186/s11671-026-04525-6","url":null,"abstract":"<div><p>The global transition to sustainable energy has accelerated research into photoelectrochemical (PEC) hydrogen production, a promising technology for converting sunlight into storable chemical fuel. Among emerging materials, metal-organic frameworks (MOFs) and perovskites have shown great promise due to their adjustable band structures, catalytic versatility, and optoelectronic performance. This study provides a comparative and bibliometric analysis of MOFs and perovskite-based PEC systems, combining a review of recent advancements in heterojunction design, band-gap engineering, co-catalyst integration, and stability improvements with a quantitative overview of global research trends (2015-2025) using VOSviewer and Biblioshiny. Results show that perovskites lead in light-harvesting efficiency and publication impact, while MOFs excel in catalytic versatility and interfacial engineering. Hybrid MOF-perovskite structures exhibit synergistic effects that enhance charge separation, durability, and solar-to-hydrogen conversion efficiency. These findings emphasize the importance of combining both material types as a key step toward developing efficient, stable, and scalable PEC devices for green hydrogen production.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13053727/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147624730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetohydrodynamic peristaltic flow of hybrid nanofluid in an asymmetric channel with thermal radiation and shape factors: an application of coolant systems","authors":"K. Thirunavukarasan,&nbsp;G. Sucharitha","doi":"10.1186/s11671-026-04496-8","DOIUrl":"10.1186/s11671-026-04496-8","url":null,"abstract":"<div><p>This study investigates the peristaltic transport of Al₂O₃-Cu/ethylene glycol hybrid nanofluid in an asymmetric microchannel under an inclined magnetic field. The analysis incorporates electroosmosis, Hall current, viscous dissipation, thermal radiation, buoyancy forces, nanoparticle shape, and internal heat source effects. The Poisson–Boltzmann equation is linearized using the Debye-Hückel approximation, and the governing flow equations are solved analytically via the Homotopy Perturbation Method (HPM). Results indicate that increasing the Helmholtz-Smoluchowski velocity parameter from 0.1 to 0.5 leads to a 5.729% rise in skin friction at the left wall. Compared to spherical nanoparticles, laminar-shaped nanoparticles improve heat transfer by 13.9% at the right wall. The present study is novel in that it simultaneously addresses these multiphysical effects, providing a comprehensive understanding of hybrid nanofluid peristaltic flow. The findings offer valuable insights for microfluidic devices, coolant systems, and advanced thermal management applications, including a range of heat exchanger systems such as radiators, heating–ventilation units, and micro-electromechanical systems (MEMS).</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13053728/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147629406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A perspective on magnetic ionic liquids as multifunctional platforms for drug delivery and biomedical applications","authors":"Ashwini Kumar Mishra,&nbsp;Sweta Acharya,&nbsp;Ankit Jain","doi":"10.1186/s11671-026-04546-1","DOIUrl":"10.1186/s11671-026-04546-1","url":null,"abstract":"<div><p>The demand for advanced field-responsive materials has positioned magnetic ionic liquids (MILs) as a transformative class of tunable fluids that bridge materials science and biomedicine. Initially valued for magnetically induced behaviors, MILs excel in surface activity, solubility enhancement (up to 39,000-fold for poorly soluble drugs), colloidal stabilization, and polymer-surfactant interactions at interfaces. Recent computational advances, Density Functional Theory (DFT) for electronic structures and ion reactivity, alongside Molecular Dynamics (MD) simulations, predict properties across timescales, enabling design-driven synthesis of low-viscosity, high-magnetic-moment formulations with thermal stability to 345 °C. In biomedicine, MILs promise targeted drug delivery, NIR-fluorescent theranostics, and dual-mode MRI contrast via paramagnetic chelates, with 2025 breakthroughs in magnet-guided tumor nanocomplexes outperforming traditional nanoparticles. Their significance lies in their use as stimuli-responsive platforms for oncology, neurology, and antimicrobial therapies, thereby enhancing bioavailability and enabling green, recyclable pharmaceutical processes. Yet, critical gaps persist. Fe-based MILs suffer from hydrolysis and reproducibility issues, while Co/Mn variants raise toxicity concerns, limiting biocompatibility, in vivo biodistribution studies, and pharmacokinetics data. Scalability hurdles, such as high costs, non-standardized characterization, and inadequate models for field effects on transport, hinder clinical translation. This perspective critically reflects on the evolution of MIL research, integrating experimental and computational advances, and underscores the need for design-driven synthesis, standardised characterisation, and application-oriented strategies. By highlighting achievements, addressing key challenges, and mapping future directions, we aim to stimulate cross-disciplinary dialogue and accelerate the translation of MILs into next-generation technological and biomedical platforms.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13050671/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147624737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and characterization of Zn-integrated cellulose nanoparticle derived from sugarcane bagasse for biomedical applications","authors":"Abhishek Verma,&nbsp;Gaurav Singh,&nbsp;Ankit Srivastava,&nbsp;Subash Chandra Gupta,&nbsp;Dalia Dasgupta Mandal","doi":"10.1186/s11671-026-04540-7","DOIUrl":"10.1186/s11671-026-04540-7","url":null,"abstract":"<div><p>The valorization of agricultural residues for synthesizing advanced nanomaterials has garnered significant attention in recent years. This study reports the environmentally benign and cost-effective extraction of cellulose from sugarcane bagasse (SCB), a prevalent agro-industrial byproduct for the synthesis of nanoparticles integrated with Zn (CNP-Zn). Cellulose was extracted from SCB through iterative alkali treatment and bleaching, followed by in situ zinc incorporation during nanoparticle formation via acid hydrolysis and physicochemically characterized. Dynamic Light Scattering (DLS) analysis indicated an average particle diameter of 341.52 nm (PDI 0.4786), whereas Field Emission Scanning Electron Microscopy (FESEM) and High-Resolution Transmission Electron Microscopy (HR-TEM) images demonstrated quasi-spherical morphology (&lt; 100 nm). The Fourier Transform Infrared Spectroscopy (FTIR) confirmed the presence of characteristic cellulose functional groups. X-ray Diffraction (XRD) patterns revealed a crystalline structure. Antioxidant activity, assessed via the DPPH assay, demonstrated CNP-Zn’s free radical scavenging capacity. Hemolytic analysis (10–500 µg/ml) showed less than 2% red blood cell lysis, supporting the cytocompatibility of CNP-Zn. These nanoparticles exhibited moderate anticancer activity compared to their control (IC₅₀ 557.61 µg/ml) in the triple-negative breast cancer cell line MDA-MB-231. Apart from this, bio-stimulant and favourable biocompatibility have been monitored in plant assays (250–2500 µg/ml) on <i>Vigna radiata</i>. These nanoparticles also revealed moderate broad-spectrum UV protection with a Sun Protection Factor (SPF) of 13.54; CNP-Zn represents its good UV-protecting feature. These studies thus highlight the ability of agricultural waste-derived CNP-Zn as a sustainable nanomaterial for biomedical applications.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04540-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biosynthesis of zinc oxide and silver/zinc oxide nanocompositesusing Kalanchoe pinnata leaf extracts for antibacterial and anticancer applications","authors":"Krishnan Shreema,&nbsp;Shanmugam Mathammal,&nbsp;Gopi Somasundaram,&nbsp;Viswanathan Kalaiselvi,&nbsp;Nadir Ayrilmis,&nbsp;B. Blessymol","doi":"10.1186/s11671-026-04523-8","DOIUrl":"10.1186/s11671-026-04523-8","url":null,"abstract":"<div><p>Green synthesis of metal and metal oxide nanoparticles has attracted considerable attention due to its eco-friendly nature and enhanced functional performance. Zinc oxide (ZnO) nanoparticles have been extensively explored; however, their efficiency is often limited by rapid charge recombination and moderate biological activity. The incorporation of silver (Ag) and the use of plant-mediated synthesis offer a promising strategy to overcome these limitations.In the present study, Ag–ZnO nanoparticles were synthesized via a green route using <i>Kalanchoe pinnata</i> leaf extract as a natural reducing and stabilizing agent. The synthesized nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV–Visible spectroscopy, scanning electron microscopy (SEM), and energy-dispersive X-ray analysis (EDAX). The biological activities were evaluated using standard antioxidant and antibacterial assays.XRD analysis confirmed the crystalline nature of ZnO with the successful incorporation of Ag, without the formation of secondary impurity phases. The FTIR spectra revealed the presence of phytochemical functional groups responsible for nanoparticle stabilization. SEM images demonstrated nearly spherical and well-dispersed nanoparticles, while EDAX analysis confirmed the elemental composition of Ag and Zn. UV–Visible spectroscopy indicated enhanced optical absorption due to Ag incorporation.The Ag–ZnO nanoparticles exhibited significantly improved antioxidant and antibacterial activities compared to pure ZnO, which can be attributed to the synergistic effect of Ag and bioactive phytochemical capping. This study demonstrates that <i>Kalanchoe pinnata</i>-mediated green synthesis effectively enhances the structural, optical, and biological performance of Ag–ZnO nanoparticles, highlighting their potential for eco-friendly biomedical applications.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><img></picture></div></div></figure></div></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04523-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green one pot synthesis of silver nanoparticles for antioxidant and antimicrobial activities","authors":"Monika Moond,&nbsp;Sushila Singh,&nbsp;Seema Sangwan,&nbsp;Sachin Kumari","doi":"10.1186/s11671-026-04529-2","DOIUrl":"10.1186/s11671-026-04529-2","url":null,"abstract":"<div><p><i>Trigonella foenum-graceum</i> L. (variety HM 444) seeds are an excellent source of phenolics, flavonoids, and sugars, which serve as reducing, stabilizing, and capping agents for the reduction of silver ions to AgNPs. Various phytochemicals such as total phenolic content (5.37 ± 0.14 mg GAE/g), total flavonoids (1.43 ± 0.03 mg CE/g), total sugars (41.44 ± 0.61 mg/g), reducing sugars (0.73 ± 0.02 mg/g) and non- reducing sugars (40.71 ± 0.58 mg/g) were reported in aqueous seed extract. Their ability to mediate AgNPs biosynthesis was evaluated. The synthesized AgNPs were characterized by UV-Vis spectroscopy, particle size analyser, XRD, FESEM-EDX, HRTEM, SAED and FT-IR Spectroscopy. The average size of the AgNPs was 27 nm and they were spherical in shape. The AgNPs showed better 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity with a lower IC₅₀ = 620.00 µg/mL as compared the aqueous seed extract (IC₅₀ = 623.33 µg/mL). AgNPs exhibited significant antimicrobial activity against <i>Staphylococcus aureus</i>, <i>Xanthomonas spp</i>., <i>Macrophomina phaseolina</i> and <i>Fusarium oxysporum</i> compared to the aqueous seed extract. According to this study, AgNPs may be a contender for various biological, nutraceutical, and sustainable antimicrobial food packaging applications.</p></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"21 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-026-04529-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}